the state of being patent.
Medicine/Medical. the condition of not being blocked or obstructed.
Phonetics. openness of articulation, found more or less in all phonemes except stops.
Origin of patency
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the condition of being obvious
the state of a bodily passage, duct, etc, of being open or unobstructed
phonetics the degree to which the vocal tract remains unobstructed in the articulation of a speech soundSee also closure (def. 7)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Online Etymology Dictionary, © 2010 Douglas Harper
The state or quality of being open, expanded, or unblocked.